Determination of K-shell absorption jump factors and jump ratios for La2O3, Ce and Gd using two different methods

•The K shell absorption jump factors and jump ratios were measured for La2O3, Ce and Gd.•These parameters were determined using two different methods.•The measured values of the parameters were found in good agreement with the theoretical ones.

The K shell absorption jump factors and jump ratios for La2O3, Ce and Gd samples have been determined using the gamma or X-ray attenuation and EDXRF methods. It is the first time that the K shell absorption jump factor and jump ratio have been discussed for present elements using two different methods. To detect K X-rays, a high resolution Si(Li) detector was used. The experimental results of K shell absorption jump factors and jump ratios were compared with the theoretically calculated ones.